Eugene bush



E. BUSH.

VALVE CONSTRUCTlON.

A-A Buc/mou -FILED APR. Iva. 1918.

1,307,39 l Pateted June 24, 1919.

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ugfana Bus`nonirica'.

VALVE CONSTRUCTION.

Leonesa.

To all whom t may concern.'

Beit known that I, EUGENEv BUSH, a citizen of the United States,residing at Washington, in 'the District of Columbia, haveinventedcertain new and useful Improvements in- Valve Construction; andI do hereby declare the following t0 be a full, clear, andexact'description of the invention, such as will enable others skilledin the art to which it appertains to makeand use the same.

This invention relates to valve construction and particularly totheconstruction of float valves for the flush tanks of water.

closets, or other flush tanks.

The primary object of the invention is to so improve the construction ofsuch valve mechanism that much trouble heretofore encountered in the useof such valves will be eliminated, the adjustment of the partsfacilitated,` and the life of the mechanism lengthened.

A specific object'of the invention is to provide an improvedconstruction of valve seat whereby different sizes of rubber floatvalves may be used in the same seat.

A further specific object of the invention is topro'vide an improvedconstruction of valve seat whereby its removal and replace ment inposition will be greatl facilitated.

A further specific object of t e invention is to so construct the valvemechanism that all danger of corroding or rusting of the metallicthreaded parts will be obviated. l .With these objects in view, theinvention consists in the improvedr construction, arrangement andcombination of the parts of a device of the vcharacter specified, whichwill be hereinafter fullyy described and after. ward specificallyclaimed. Y

1n order that the construction and operation thereof may be readilycomprehended, l have illustrated an approved embodiment of my inventionin the accompanyin drawings, and will now proceed to fully escribe thesame in connection with said drawings,

Specification of Letters Patent.

- indicates t v Patented June 24, 1919.

application mea April 13, 191s. serial No. 22ans.

Referrin particularly to the drawing, 4 e valve seat, usually cast butyvh1ch might be stamped up of wrought iron, 1f desired.

5 indicates the usual overflow pipe communicating with the escape pipe 6through a branch 7 in the usual manner.

8 indicates the usual bulb or oat valve,

usually made of rubber and provided with a valve stem 9 which is slidablmounted in and is guided by vertical gui es or sleeves 10 at the outerend, of a4 usually horizontal arm 11 Aadjustably secured upon theoveriow pipe 5, in any approved manner, being shown in this instance asby a ring 12 and fastening screw 13.

rll`he escape pipe 6 wprojects downward through the bottom 14 of thetank and is held firmly in position by a threaded sleeve nut 15 and isprovided `with a suitable gasket 16,a to prevent leakage.

Above the bottom 14 the waste pipe is extended, as at 15a and isinteriorly threaded as at 16 and receives the lower threaded' end 17 ofthe valve seat 4, the bottom of which is exteriorly threaded into this iextension 15a, a gasket 18 being interposed between said lower end and ashoulder 19 on the extensionli'1 to prevent the water in the escape pipereaching the threads, thus to avoid the corroding or rusting of thethreads.

At the junction of the lower end of the valve seat with the main'body 20thereof is an annular projecting flange 21 which rests upon the upperedge of the extension 15a of the waste pipe, and as a preventive of thewater in the tank reaching the threads, a gasket 22 is interposedbetween the said top of the extension 15 and said annular ange 21, soythat when the valve seat is firmly fixed in osition the water in thetank will be exclu ed from the threads by the gasket 22 and the water inthe escape pipe is similarly excluded by the gasket 18.

Above the flange 21, the valve seat flares outward in curved lines andaffords a seat of continually increasing width to receive thecrdinarybulb valve 8, the outer edge of the flared seat bein provided withnotches 23 lso that it may be grasped by the fingers to ,seat or unseatit, and in order that a wrench or other tool may be ap lied to it -tojar it loose inthe event of its sticking, the

notches are provided at each end with abrupt, substantially square ends24.

'In order' to freely permit the hand to turn around with the valve seatwithout striking the overliow pipe, the pipe 5 is set a suflicientdistance/from the valve seat by lengthening the branch 7, and the arm 1lis likewise correspondingly lengthened toassure the positioning of thevalve stem and valve centrally above the valve seat.

Very often when a plumber is called' to make repairs to a flush tank, hefinds the bulb valve leaking or otherwise disabled and in endeavoring toseat a new bulb, he finds that all he has are of sizes dierent from theone he is removing. Ordinarily, he would be compelled to wait until hecould procure one of the same size. This diiiiculty is entirelyobviatedby my construction of valve seat which, owing to its outwardlyflaring form, will accommodate bulb valves of different sizes.

Usually the bulbs swell, often to twice their original size, and thissha e of the valve seat will accommodate suc-1 swelled bulbs and avoidthe usual necessity of furnishing a new bulb.

The utility and simplicity of my inven-y tion will be evident from theforegoing and I desire to be understood that changes and variations maybe made `from the specific construction described, without departingfrom the spirit and scope of the invention.

Having thus fully described my invention, what I claim as new and desireto secure by `Letters`Patent of the United States, is

1. A valve seat constructionfor tanks, comprising'a pipe to projectthrough the bottom of the tank and having an upper eX- tension of largerinternal diameter than the pipe to provide a shoulder, a valve seatscrew threaded into said extension and having a flange abovev saidextension, packing means between said flange and extension above thescrew threads, and packing means between said seat and shoulder at thelower portion of the lscrew threads.

2. The combination with a tank, a waste pipe projecting below andthrough the bottom thereof and having an upper extension projecting intothe tank, of a valve seat threaded into the upward Vextension and meansfor excluding the water of the tank and waste pipe from contact with thevalve seat threads, said means comprising a gasket between the bottom ofthe valve seat and an interior shoulder in the extension, an

"external annular liange on the valve seat at the top of the valve seatthreads and projecting over the top edge of the extension, anda gasketbetween said flange and the top of the extension. l

3. A valve seat construction comprising a waste pipe to project `throughthe bottom of a tank, a valve seat having a lower portion threaded intothe upper portion of said pipe and having a flange above said pipe, andpackin means between said flan e and pipe, said va ve seat above saidflange eing flared on curved lines outwardly to accommodate bulb valvesof different sizes, the ed e of said valve projecting outwardly and eingprovided with notches for the reception of the fingers and tools.

4. A valve seat for flush tanks, having a lower threaded portion tothreadedly en-v gage a waste pipe and having a portion thereabove flaredoutwardly on curved lines to accommodate bulb valves of different sizes,the edge of said valve seat projecting outwardly and being notched forthe engagement of the fingers and tools.

In testimony whereof I have signed my name to this specification lin thepresence of a subscribing witness. v

EUGENE BUSH. Witness:

SAML. W. COCKRELLU

